{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "145232",
    "entityType": "User",
    "nonce": "0xcaf05c9d8345f5e33fdf612a1a755f1a77ed3a5d9516fbbb076042878d9e0df1",
    "signature": "0xbbabd36f6b05bbe97c1c2a317f029e2a257939cb14d7b860fdf7d8d909b47a5c4bcfc9b0723ca867695e1bb825e086f8c4fc08230b10a59f13e24b06bdbd6efa1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}